I have a fairly complicated question open on SO at the moment, and it's not attracting too many views or responses. I added a generous bounty, expecting it to appear on the "Featured" tab. According to the Stack Overflow FAQ:

Slice off anywhere from +50 to +500 of your own hard-earned reputation and attach it to any question as a bounty. The bountied question will appear with a special indicator in all question lists, and it will also be visible on the home page Featured tab for the duration of the bounty period.

My question is here and it clearly shows there is an open bounty, but it doesn't appear on the feature tab.

Any reason why? One of the reasons I put the bounty was for the extra views the question would get on the feature tab, but this seems to be a waste now.